1,720,973 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Evergreen methods for phylogeny
No full textThe emergence and adaptation of new technologies in DNA sequencing in the last decade led to the broader application of sequencing. Whole-genome sequencing of pathogens for food-safety, human and animal health has gained traction, and authorities of various countries have adopted the technology and made it part of their routine procedures. Genomic epidemiology, the use of genomic data in outbreak investigations and disease surveillance, has increased the number of solved outbreaks and reduced the cluster sizes, improving public health at a national level. Furthermore, the deluge of WGS data published in public repositories could be utilized as well. However, new software solutions were needed to provide an overview of this data, and going beyond that, to compare and analyse the samples of the same subtypes to detect potential outbreak clusters. My PhD is comprised of projects with the aim of developing scalable and continuous, i.e. ”evergreen”, computational methods for genomic epidemiology. This thesis introduces first the basics of subtyping in microbiology, DNA sequencing technologies and phylogenomics, to serve as background for the projects in genomic epidemiology. The first two included manuscripts centered around a pipeline for automated phylogenomic analysis of bacterial isolates (PAPABAC). As whole-genome sequencing data of bacterial isolates from clinical and environmental samples collected worldwide are being released by the thousands, comparison of these isolates with the aim of outbreak detection has become possible, by applying a scalable and autonomous method. PAPABAC was shown in Paper I to accurately cluster outbreak isolates of Escherichia coli, Campylobacter jejuni and Listeria monocytogenes benchmarking datasets, even in the company of a thousand non-outbreak related samples. Therefore, it was utilized in Evergreen Online, a platform for surveillance of foodborne outbreaks. Its performance on clustering was compared to the NCBI Pathogen detection pipeline, and found to be similar. In Paper II, we analysed WGS data from 5,655 methicillin resistant Staphylococcus aureus (MRSA), and 2,572 Enterococcus faecium patient isolates collected in Denmark over a 5-year period. PAPABAC underwent upgrades to handle unknown and missing bases more flexible. The SNP-based trees were in concordance with those achieved with cgMLST. For MRSA, epidemiological data were also available, and the PAPABAC clusters contained known nosocomial outbreaks and other epidemiologically linked isolates. The concept behind PAPABAC could be applied to other sequence data as well not just WGS data derived from bacteria. Paper III features Krummholz, a modified version of PAPABAC, suited to subtype and cluster consensus sequences obtained from viruses. To demonstrate the feasibility of the method, Krummholz trees were generated for norovirus VP1 sequences downloaded from Genbank. At 85% similarity threshold, the pipeline separated the VP1 sequences along their genogroups, creating an overview of the genetic diversity of the deposited sequences in Genbank. Displayed in Microreact, the krummholz trees of the genogroups GII.2, GII.3, GII.4 and GII.17 exhibit the temporal and spatial spread of samples collected during human gastroenteritis outbreaks. Thus, Krummholz was shown to aid and simplify the surveillance of viral pathogens, which is of high importance for vaccine- and diagnostics development. The final project, described in Paper IV, analysed whole-genome sequenced fungal patient isolates collected for a point prevalence survey from Danish Clinical Microbiology Laboratories in 2018. The 51 samples were typed, and thereafter thirty Candida albicans and eight Candida glabrata samples were subjected to phylogenetic analysis. No evident correlation was detected between phylogenetic placement and sampling institute or source of the Danish samples. The samples were also tested for antifungal susceptibility, and ultimately, all C. albicans samples were phenotypically susceptible to all tested antifungal agents, and only two C. glabrata samples were phenotypically resistant to azoles. The phylogenetic analysis was performed with a pipeline written for a popular workflow manager, ensuring repeatability and easing the analysis of additional samples. Thus, we also included samples collected worldwide, which resulted in phylogenies for both pathogens, where the Danish samples were placed in clades of globally prevalent subtypes. The thesis concludes in a chapter recapitulating the results of the projects and discussing aspects of the work that could be improved upon in the future, to progress further
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Author Under Sail The Imagination of Jack London, 1893-1902
No full textIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Intro -- Title Page -- Copyright Page -- Dedication -- Contents -- Acknowledgments -- Introduction -- 1. Spirit Truth -- 2. From Absorption to Theatricality and Back Again -- 3. "I Will Build a New Present" -- 4. Sons as Authors -- 5. Fathers as Publishers -- 6. The Daughter as Author -- 7. Lovers as Authors -- 8. At Sea with the Family -- 9. Yellow News, Yellow Stories -- 10. The Return Home -- Notes -- Bibliography -- Index -- About Jay WilliamsIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Description based on publisher supplied metadata and other sources.Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, YYYY. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
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